Cisco IOS XE AVC-FNF buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Cisco IOS XE. This issue affects some unknown processing of the component AVC-FNF. This manipulation causes buffer overflow. This vulnerability appears as CVE-2022-20683. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Cisco IOS XE (Router Operating System) (affected version unknown). Affected by this vulnerability is an unknown functionality of the component AVC-FNF. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect availability.

The weakness was presented 04/15/2022 as cisco-sa-c9800-fnf-dos-bOL5vLge. It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2022-20683 since 11/02/2021. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/15/2022).

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.6
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/02/2021 🔍
04/15/2022 +163 days 🔍
04/15/2022 +0 days 🔍
04/20/2022 +5 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-c9800-fnf-dos-bOL5vLge
Status: Confirmed

CVE: CVE-2022-20683 (🔍)
GCVE (CVE): GCVE-0-2022-20683
GCVE (VulDB): GCVE-100-197443
scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 04/15/2022 18:41
Updated: 04/20/2022 16:33
Changes: 04/15/2022 18:41 (49), 04/20/2022 16:33 (1)
Complete: 🔍
Cache ID: 216::103

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